import { Injectable } from '@angular/core';
import { AppConfig } from "../config";
import { Headers, Http } from '@angular/http';
import { Observable } from "rxjs/Observable";
import { Permission } from "../entity/permission.model";
import { InterceptorService } from '../service/interceptor/interceptor-service';

@Injectable()
export class PermissionService {
  private readonly param = "permissions";
  private get url(): string {
    return `${AppConfig.APP_RESTFUL}/${this.param}`;
  }

  constructor(private http: InterceptorService) {
  }


  /**
   * 获取所有
   * 
   * @returns {Promise<Permission[]>} 
   * @memberof PermissionService
   */
  getPermissions(): Promise<Permission[]> {
    return this.http.get(`${this.url}`)
      .toPromise()
      .then(res => res.json().data as Permission[])
      .catch(this.handleError);
  }

  

  


  batchDelete(valueIds: number[]): Promise<boolean> {
    const apiUrl = `${this.url}?items=${valueIds}`;
    return this.http.delete(apiUrl)
      .toPromise()
      .then(response => {
        try {
          let result = response.json();
          switch (result.code) {
            case "200":
              return true;
            case "-1":
              throw new Error(result.message);
          }
        }
        catch (error) {
          throw error;
        }

      })
      .catch(this.handleError);
  }


  private handleError(error: any): Promise<any> {
    return Promise.reject(error.message || error);
  }

}



// WEBPACK FOOTER //
// ./src/app/service/permission.service.ts